Synthesis and Structural Phase Transitions of Copper(II) and Iron(III) Complexes Containing [(C8H12NO)(18-crown-6)]+ Supramolecular Cations

被引：9

作者：

Jin, Yu ^{[1
]}

Yu, Chun-Hua ^{[1
]}

Wang, Yu-Feng ^{[1
]}

Li, Si-Chao ^{[1
]}

Zhang, Wen ^{[1
]}

机构：

[1] Southeast Univ, Ordered Matter Sci Res Ctr, Nanjing 211189, Jiangsu, Peoples R China

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2014年 / 640卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Crystal structure; Supramolecular assembly; Crown ether; Phase transitions; Dielectric constant; CRYSTALLINE MOLECULAR MACHINES; DYNAMICS;

D O I：

10.1002/zaac.201300533

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The organic-inorganic hybrid compounds, [Cu2Cl6](2-) (1), [Fe2Cl6O](2-) (2), and [FeCl4](-) (3), based on [(C8H12NO)(18-crown-6)](+) (C8H12NO = 4-methoxybenzylammonium) supramolecular cations, were synthesized and structurally characterized. Crystal structure analyses and thermal and dielectric studies showed that compounds 1 and 2 have similar crystal packings and undergo reversible phase transitions at 230 K and 358 K, respectively. Compound 3 shows a phase transition at 361 K, though its crystal structure is remarkably different from 1 and 2. These results indicate that the phase transitions may arise from the [(C8H12NO)(18-crown-6)](+) supramolecular cations. The role of the chlorometalate anions is to tune the crystal packings and thus the phase transition points and types.

引用

页码：1499 / 1505

页数：7

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